Tom Lane wrote:

> "Leszek Trenkner" <[EMAIL PROTECTED]> writes:
>> I'll post schema for bug recreation on pgsql-bugs.
> 
> Yes?
> 
> regards, tom lane

Well, I bug appeared on list with a long delay, so in the morning I didn't
notice it yet. Database dump that allows me to recreate situation comes
attached. It's a really simple query, and today I reproduced the very same
crash  on different machine. 

It doesn't happen on stock Ubuntu's 8.2 ("PostgreSQL 8.2.4 on
i486-pc-linux-gnu, compiled by GCC cc (GCC) 4.1.2 (Ubuntu
4.1.2-0ubuntu4)").

Server log with 'debug5' level: 

"PostgreSQL 8.3devel on i686-pc-linux-gnu, compiled by GCC gcc (GCC) 4.1.2
(Ubuntu 4.1.2-0ubuntu4)"
--------------------------------------------------------------------------
2007-05-24 18:55:50 CEST <[EMAIL PROTECTED] crash> idle: DEBUG:  00000:
StartTransactionCommand
2007-05-24 18:55:50 CEST <[EMAIL PROTECTED] crash> idle: LOCATION: 
start_xact_command, postgres.c:2248
2007-05-24 18:55:50 CEST <[EMAIL PROTECTED] crash> idle: STATEMENT: 
explain select t.id, foo.name from t join 
        (select ta.id, ta.name from ta
        union select tb.id, tb.name from tb
        ) foo on foo.id = any (t.ids);
        
2007-05-24 18:55:50 CEST <[EMAIL PROTECTED] crash> idle: DEBUG:  00000:
StartTransaction
2007-05-24 18:55:50 CEST <[EMAIL PROTECTED] crash> idle: LOCATION: 
ShowTransactionState, xact.c:4031
2007-05-24 18:55:50 CEST <[EMAIL PROTECTED] crash> idle: STATEMENT: 
explain select t.id, foo.name from t join 
        (select ta.id, ta.name from ta
        union select tb.id, tb.name from tb
        ) foo on foo.id = any (t.ids);
        
2007-05-24 18:55:50 CEST <[EMAIL PROTECTED] crash> idle: DEBUG:  00000:
name: unnamed; blockState:       DEFAULT; state: INPROGR, xid/subid/cid:
757/1/0, nestlvl: 1, children: <>
2007-05-24 18:55:50 CEST <[EMAIL PROTECTED] crash> idle: LOCATION: 
ShowTransactionStateRec, xact.c:4056
2007-05-24 18:55:50 CEST <[EMAIL PROTECTED] crash> idle: STATEMENT: 
explain select t.id, foo.name from t join 
        (select ta.id, ta.name from ta
        union select tb.id, tb.name from tb
        ) foo on foo.id = any (t.ids);
        
2007-05-24 18:55:50 CEST <[EMAIL PROTECTED] crash> EXPLAIN: DEBUG:  00000:
ProcessUtility
2007-05-24 18:55:50 CEST <[EMAIL PROTECTED] crash> EXPLAIN: LOCATION: 
PortalRunUtility, pquery.c:1142
2007-05-24 18:55:50 CEST <[EMAIL PROTECTED] crash> EXPLAIN: STATEMENT: 
explain select t.id, foo.name from t join 
        (select ta.id, ta.name from ta
        union select tb.id, tb.name from tb
        ) foo on foo.id = any (t.ids);
        
2007-05-24 18:55:50 CEST <@ > : DEBUG:  00000: reaping dead processes
2007-05-24 18:55:50 CEST <@ > : LOCATION:  reaper, postmaster.c:2022
2007-05-24 18:55:50 CEST <@ > : DEBUG:  00000: server process (PID 9253) was
terminated by signal 11: Segmentation fault
2007-05-24 18:55:50 CEST <@ > : LOCATION:  LogChildExit, postmaster.c:2460
2007-05-24 18:55:50 CEST <@ > : LOG:  00000: server process (PID 9253) was
terminated by signal 11: Segmentation fault
2007-05-24 18:55:50 CEST <@ > : LOCATION:  LogChildExit, postmaster.c:2460
2007-05-24 18:55:50 CEST <@ > : LOG:  00000: terminating any other active
server processes
2007-05-24 18:55:50 CEST <@ > : LOCATION:  HandleChildCrash,
postmaster.c:2332
2007-05-24 18:55:50 CEST <@ > : DEBUG:  00000: sending SIGQUIT to process
9248
2007-05-24 18:55:50 CEST <@ > : LOCATION:  HandleChildCrash,
postmaster.c:2369
2007-05-24 18:55:50 CEST <@ > : DEBUG:  00000: sending SIGQUIT to process
9247
2007-05-24 18:55:50 CEST <@ > : LOCATION:  HandleChildCrash,
postmaster.c:2369
2007-05-24 18:55:50 CEST <@ > : DEBUG:  00000: sending SIGQUIT to process
9240
2007-05-24 18:55:50 CEST <@ > : LOCATION:  HandleChildCrash,
postmaster.c:2383
2007-05-24 18:55:50 CEST <@ > : DEBUG:  00000: sending SIGQUIT to process
9242
2007-05-24 18:55:50 CEST <@ > : LOCATION:  HandleChildCrash,
postmaster.c:2395
2007-05-24 18:55:50 CEST <@ > : DEBUG:  00000: sending SIGQUIT to process
9241
2007-05-24 18:55:50 CEST <@ > : LOCATION:  HandleChildCrash,
postmaster.c:2417
2007-05-24 18:55:50 CEST <@ > : DEBUG:  00000: reaping dead processes
2007-05-24 18:55:50 CEST <@ > : LOCATION:  reaper, postmaster.c:2022
2007-05-24 18:55:50 CEST <[EMAIL PROTECTED] crash> idle: WARNING:  57P02:
terminating connection because of crash of another server process
2007-05-24 18:55:50 CEST <[EMAIL PROTECTED] crash> idle: DETAIL:  The
postmaster has commanded this server process to roll back the current
transaction and exit, because another server process exited abnormally and
possibly corrupted shared memory.
2007-05-24 18:55:50 CEST <[EMAIL PROTECTED] crash> idle: HINT:  In a moment
you should be able to reconnect to the database and repeat your command.
2007-05-24 18:55:50 CEST <[EMAIL PROTECTED] crash> idle: LOCATION: 
quickdie, postgres.c:2405
2007-05-24 18:55:50 CEST <[EMAIL PROTECTED] postgres> idle: WARNING: 
57P02: terminating connection because of crash of another server process
2007-05-24 18:55:50 CEST <[EMAIL PROTECTED] postgres> idle: DETAIL:  The
postmaster has commanded this server process to roll back the current
transaction and exit, because another server process exited abnormally and
possibly corrupted shared memory.
2007-05-24 18:55:50 CEST <[EMAIL PROTECTED] postgres> idle: HINT:  In a
moment you should be able to reconnect to the database and repeat your
command.
2007-05-24 18:55:50 CEST <[EMAIL PROTECTED] postgres> idle: LOCATION: 
quickdie, postgres.c:2405
2007-05-24 18:55:50 CEST <@ > : DEBUG:  00000: reaping dead processes
2007-05-24 18:55:50 CEST <@ > : LOCATION:  reaper, postmaster.c:2022
2007-05-24 18:55:50 CEST <@ > : DEBUG:  00000: server process (PID 9247)
exited with exit code 2
2007-05-24 18:55:50 CEST <@ > : LOCATION:  LogChildExit, postmaster.c:2440
2007-05-24 18:55:50 CEST <@ > : DEBUG:  00000: server process (PID 9248)
exited with exit code 2
2007-05-24 18:55:50 CEST <@ > : LOCATION:  LogChildExit, postmaster.c:2440
2007-05-24 18:55:50 CEST <@ > : LOG:  00000: all server processes
terminated; reinitializing
2007-05-24 18:55:50 CEST <@ > : LOCATION:  reaper, postmaster.c:2228
2007-05-24 18:55:50 CEST <@ > : DEBUG:  00000: shmem_exit(0)
2007-05-24 18:55:50 CEST <@ > : LOCATION:  shmem_exit, ipc.c:155
----------------------------------------------------------------------------------------
Well, previous crash report was in fact from Debian 4.0 host, not Ubuntu:
"PostgreSQL 8.3devel on i686-pc-linux-gnu, compiled by GCC gcc (GCC) 4.1.2
20061115 (prerelease) (Debian 4.1.1-21)"
-- 
Greetings. Leszek Trenkner
--
-- PostgreSQL database dump
--

SET client_encoding = 'UTF8';
SET standard_conforming_strings = off;
SET check_function_bodies = false;
SET client_min_messages = warning;
SET escape_string_warning = off;

--
-- Name: SCHEMA public; Type: COMMENT; Schema: -; Owner: postgres
--

COMMENT ON SCHEMA public IS 'Standard public schema';


SET search_path = public, pg_catalog;

SET default_tablespace = '';

SET default_with_oids = false;

--
-- Name: t; Type: TABLE; Schema: public; Owner: postgres; Tablespace: 
--

CREATE TABLE t (
    id integer DEFAULT nextval(('"public"."seq"'::text)::regclass) NOT NULL,
    ids integer[]
);


ALTER TABLE public.t OWNER TO postgres;

--
-- Name: ta; Type: TABLE; Schema: public; Owner: postgres; Tablespace: 
--

CREATE TABLE ta (
    id integer DEFAULT nextval(('"public"."seq"'::text)::regclass) NOT NULL,
    "name" text NOT NULL
);


ALTER TABLE public.ta OWNER TO postgres;

--
-- Name: tb; Type: TABLE; Schema: public; Owner: postgres; Tablespace: 
--

CREATE TABLE tb (
    id integer DEFAULT nextval(('"public"."seq"'::text)::regclass) NOT NULL,
    "name" text NOT NULL
);


ALTER TABLE public.tb OWNER TO postgres;


--
-- Data for Name: t; Type: TABLE DATA; Schema: public; Owner: postgres
--

INSERT INTO t (id, ids) VALUES (1, '{1,3,8,9,10,12}');
INSERT INTO t (id, ids) VALUES (2, '{2,6,7,11,12}');
INSERT INTO t (id, ids) VALUES (3, '{3,5,6,9,11,14}');
INSERT INTO t (id, ids) VALUES (4, '{4,5,7,8,9,13}');
INSERT INTO t (id, ids) VALUES (5, '{5,6,8,10,12}');


--
-- Data for Name: ta; Type: TABLE DATA; Schema: public; Owner: postgres
--

INSERT INTO ta (id, "name") VALUES (6, 'ant_a');
INSERT INTO ta (id, "name") VALUES (7, 'ant_b');
INSERT INTO ta (id, "name") VALUES (8, 'ant_c');


--
-- Data for Name: tb; Type: TABLE DATA; Schema: public; Owner: postgres
--

INSERT INTO tb (id, "name") VALUES (9, 'bee_a');
INSERT INTO tb (id, "name") VALUES (10, 'bee_b');
INSERT INTO tb (id, "name") VALUES (11, 'bee_c');


--
-- Name: pk_t; Type: CONSTRAINT; Schema: public; Owner: postgres; Tablespace: 
--

ALTER TABLE ONLY t
    ADD CONSTRAINT pk_t PRIMARY KEY (id);


--
-- Name: pk_ta; Type: CONSTRAINT; Schema: public; Owner: postgres; Tablespace: 
--

ALTER TABLE ONLY ta
    ADD CONSTRAINT pk_ta PRIMARY KEY (id);


--
-- Name: pk_tb; Type: CONSTRAINT; Schema: public; Owner: postgres; Tablespace: 
--

ALTER TABLE ONLY tb
    ADD CONSTRAINT pk_tb PRIMARY KEY (id);


--
-- Name: x_pkey; Type: CONSTRAINT; Schema: public; Owner: postgres; Tablespace: 
--



--
-- Name: public; Type: ACL; Schema: -; Owner: postgres
--

REVOKE ALL ON SCHEMA public FROM PUBLIC;
REVOKE ALL ON SCHEMA public FROM postgres;
GRANT ALL ON SCHEMA public TO postgres;
GRANT ALL ON SCHEMA public TO PUBLIC;


--
-- PostgreSQL database dump complete
--


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